Electricity, Fossil Fuels and Particle Pollution - Environmental Professionals Connection

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Electricity

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Particle Pollution

Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

DECEMBER 1, 2022

California’s leadership on reducing truck pollution has been on full display the past few years, passing critical regulations requiring 90 percent reduction in smog-forming nitrogen oxide (NO X ) emissions from diesel trucks and requiring manufacturers sell an increasing share of electric trucks to move away from fossil fuels altogether.

Nitrogen Oxides

Nitrogen Oxides Clean Air Act Ozone Fossil Fuels

Nearly Half of US Breathes Unhealthy Levels of Pollution—Cars and Trucks Largely to Blame

Union of Concerned Scientists

MAY 21, 2025

are formed indirectly in the atmosphere from other toxic pollutants also emitted from tailpipes. percent of US CO 2 emissions , are all from fossil fuel combustion in our vehicles, with the vast majority coming from pick-up trucks, SUVs and cars. Internal combustion vehicles are largely to blame, since PM 2.5 Secondary PM 2.5

Ozone

Ozone Ground-Level Ozone Air Pollution Clean Air Act

Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Nearly Half of US Breathes Unhealthy Levels of Pollution—Cars and Trucks Largely to Blame

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